Lab work in 22nd

Today we experienced areally tough time.
This week we try to use Java programming to do sentiment analysis on some tweets downloaded from websites.

The first idea was using keyword_searching method. We try to meke some lists of keywords. We make two lists， one contains positive words and another contains negative words. We contained the tweets in another csv files.
Our method is quite straight and easy.
We want to compare the three lists.
If the tweet contain negative words，the tweet is negative.
If the tweet contain positive words, the tweet is positive.

This idea is quite easy but with a lot of weakness.
Although this method is simple，it is not easy to do this job.

Here is what we did:






（well，apparently，wrong，cause our idea is so buggy.:(）

Well，we did not carry on completing our project using this method.

Maybe we can finally improve our program by adding more complex idea in this method, but...

In the end，we decided to give up our idea.

We decided to go back to use weka.

We learned that weka has a machine learning function which can achieve our aim easily.